dust jacket : A protective and often decorative wrapper, usually made of paper which wraps around the binding of a book.

tight : Used to mean that the binding of a book has not been overly loosened by frequent use.

Fair : is a worn book that has complete text pages (including those with maps or plates) but may lack endpapers, half-title, etc. (which must be noted). Binding, jacket (if any), etc., may also be worn. All defects must be noted. (defined by AB Bookman's Weekly)

Fine/Fair : Fine condition book with a Fair condition dust jacket. Fine approaches the condition of As New, but without being crisp. For the use of the term Fine there must also be no defects, etc., and if the jacket has a small tear, or other defect, or looks worn, those should be noted. Fair is a worn book that has complete text pages (including those with maps or plates) but may lack endpapers, half-title, etc. (which must be noted). Binding, jacket (if any), etc., may also be worn. All defects must be noted. (defined by AB Bookman's Weekly)

Bumps : Indicates that the affected part of the book has been impacted in such a way so as to cause a flattening, indention, or light bending.